Yakhazikitsidwa mu 1919, Cummins ili ku Columbus, Indiana, USA, ndipo imagwira ntchito m'maiko ndi madera opitilira 190 padziko lonse lapansi. Injini za Cummins zimadziwika chifukwa chodalirika, kulimba, komanso kuchita bwino, zomwe zimagwira ntchito m'mafakitale osiyanasiyana kuphatikiza zamagalimoto ...
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